After many adventures, Luffy and his crew travel to Water Seven, the city of shipwrights. Their goal to find a ship wright to join their crew and to get a new ship, since their old ship, the Merry Go, is badly damanged. Things go wrong when Robin is captured by the secret government organization CP9, which wants to use her archaeological knowledge to decipher the blueprints for the ancient super weapon Pluton. In a fierce battle, Luffy and his crew invade the government base of Enies Lobby, defeat CP9 and save Robin. But in the process, the Merry Go is completely destroyed, and the heroes bid farewell to their trusted ship as it sinks to the bottom of the sea. Returning to Water Seven, the heroes receive a new ship, the Thousand Sunny, a gift from the master shipwright Franky. Since Franky is also wanted by the government for his involvement in the raid on Enies Lobby, Luffy convinces him to join his pirate crew, and together they set sail for their next destination, Fish-Man Island.